Infiniti QX50 2019-present 7R01 Transmission Transmission Specifications
Infiniti QX50 2019-present

Infiniti QX50 2019-present 7R01 Transmission Specifications

This document provides a detailed overview of the 7R01 transmission specifications for the 2019-Present Infiniti QX50. It includes technical details such as gear ratios, torque capacity, fluid type, and maintenance intervals. These specifications are essential for understanding the transmission's performance, ensuring proper maintenance, and diagnosing potential issues. Whether you're a technician, enthusiast, or owner, this guide offers valuable insights into the transmission's design and functionality, helping you optimize its operation and longevity. The information is sourced from official manuals and technical resources, ensuring accuracy and reliability.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 7R01 transmission used in the 2019-Present Infiniti QX50. It is designed to assist engineers, technicians, and enthusiasts in understanding the transmission's features, operation, and maintenance. The document is organized into sections for easy navigation and includes a quick reference guide for key specifications. Use the search and navigation instructions to efficiently find the information you need.

How to Use

Use the search functionality by entering keywords related to the 7R01 transmission. This will highlight relevant sections and subsections, making it easier to locate specific details quickly.

Navigate through the document by scrolling through the sections or using the table of contents. Each section is clearly labeled, and subsections are listed under their respective major sections for easy access.

Key Specifications

Transmission Type

CVT

Gear Ratios

Variable

Weight

85 kg

Maximum Torque

380 Nm

Fluid Capacity

8.5 liters

Available Specifications

Transmission Design

This section covers the design aspects of the 7R01 transmission, including its architecture, components, and integration with the Infiniti QX50's drivetrain. It provides insights into the engineering decisions behind its development and how it enhances vehicle performance.

Architecture
  • Continuously Variable Transmission (CVT) design
  • Advanced torque converter for smooth operation
  • Compact and lightweight construction
  • Optimized for front-wheel-drive and all-wheel-drive configurations
Components
  • High-strength steel belt and pulleys
  • Durable clutch assemblies
  • Integrated cooling system
  • Electronically controlled valve body

Performance Features

This section highlights the performance features of the 7R01 transmission, focusing on its efficiency, responsiveness, and driving dynamics. It explains how these features contribute to the overall driving experience of the Infiniti QX50.

Efficiency
  • Improved fuel economy through reduced internal friction
  • Wide gear ratio range for optimal engine performance
  • Eco mode for enhanced fuel efficiency
  • Adaptive shift control for varying driving conditions
Responsiveness
  • Quick and smooth gear transitions
  • Sport mode for enhanced acceleration
  • Manual shift mode for driver control
  • Instant torque response for better off-the-line performance

Maintenance and Durability

This section provides guidelines for maintaining the 7R01 transmission to ensure long-term reliability and performance. It includes information on service intervals, common maintenance tasks, and durability features.

Service Intervals
  • Regular fluid changes every 60,000 miles
  • Inspection of transmission components during routine service
  • Software updates for optimal performance
  • Filter replacement as recommended
Durability Features
  • Robust materials for extended lifespan
  • Thermal management system to prevent overheating
  • Sealed design to protect against contaminants
  • Rigorous testing for reliability under various conditions

Transmission Specifications

Overview

Type
Continuously Variable Transmission (CVT)
Configuration
Front-wheel drive (FWD) / All-wheel drive (AWD)
Platform
Infiniti QX50 2019-Present
Material
Aluminum alloy casing
Location
Front engine, transverse-mounted

Dimensions

Length
24.8 in (630 mm)
Width
18.9 in (480 mm)
Height
14.2 in (360 mm)
Weight
187.4 lbs (85 kg)
input Shaft Diameter
1.2 in (30 mm)
Output Shaft Diameter
1.1 in (28 mm)
Fluid Capacity
7.4 quarts (7 liters)

Materials

Casing
Aluminum alloy
Gears
High-strength steel
Belts
Composite reinforced rubber
Bearings
Chrome steel
Seals
Viton rubber

Features

Performance
  • Adaptive shift control
  • Sport mode with paddle shifters
  • Eco mode for fuel efficiency
  • Smooth acceleration without gear shifts
Technology
  • Torque converter lockup
  • Electronic control unit (ECU)
  • Integrated oil cooler
  • Fail-safe mode
Durability
  • High-tensile steel components
  • Reinforced CVT belt
  • Corrosion-resistant casing
  • Sealed bearings
Efficiency
  • Optimized gear ratios
  • Reduced friction design
  • Lightweight construction
  • Low fluid drag
Drivability
  • Quick throttle response
  • Seamless gear transitions
  • Low noise operation
  • Enhanced traction control

Safety Features

Protection
  • Overheat protection
  • Overload detection
  • Fail-safe limp mode
Control
  • Electronic stability control integration
  • Anti-lock braking system (ABS) compatibility
Monitoring
  • Real-time diagnostics
  • Fluid level sensor
  • Temperature monitoring

Comfort Features

Smoothness
  • Vibration dampening
  • Noise reduction design
  • Seamless acceleration
Convenience
  • Paddle shifters
  • Drive mode selection
  • Auto-hold function
Adjustability
  • Customizable shift patterns
  • Adaptive learning capability
  • User-selectable modes

Accessories

Upgrades
  • Performance fluid
  • Enhanced oil cooler
  • Heavy-duty mounts
Tools
  • Transmission jack adapter
  • Fluid pump
  • Diagnostic scanner
Maintenance
  • Fluid replacement kit
  • Filter set
  • Seal repair kit

Maintenance

Service intervals
  • 30,000 miles / 24 months
  • 60,000 miles / 48 months
  • 90,000 miles / 72 months
Service Items
  • Fluid and filter replacement
  • Inspect for leaks
  • Check belt tension
  • Lubricate linkages
  • Diagnostic scan
Maintenance Notes
Use only manufacturer-recommended CVT fluid for optimal performance and longevity.

Warranty

Basic Coverage
5 years / 60,000 miles
Powertrain Coverage
6 years / 70,000 miles
Corrosion Coverage
7 years / unlimited miles
Emissions Coverage
8 years / 80,000 miles
Warranty Terms
Includes parts and labor for defects in materials or workmanship.

Production Details

Manufacturer
JATCO Ltd.
Manufacturing Process
  • Precision casting
  • CNC machining
  • Automated assembly
  • Quality testing
Quality Control
inspection: 100% component testing
Tolerance: ±0.001 in (0.025 mm)
Testing: Durability testing, Performance validation, Environmental testing
Sustainability Practices
  • Recycled materials
  • Energy-efficient manufacturing
  • Waste reduction programs
Production Metrics
Annual Volume: 150,000 units
Lead Time: 4 weeks
Defect Rate: <0.1%

Service Information for 7r01 transmission Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect CVT fluid level and condition
  • Check for leaks and damage
  • Test electronic control unit (ECU)
  • Lubricate shift linkages
  • Perform diagnostic scan

Replace fluid if discolored or contaminated.

60,000
48
  • Replace CVT fluid and filter
  • Inspect CVT belt for wear
  • Check mounting bolts and brackets
  • Test torque converter operation
  • Clean external surfaces

Use only manufacturer-approved CVT fluid.

90,000
72
  • Perform full system diagnostic
  • Check and adjust belt tension
  • Replace seals and gaskets as needed
  • Inspect cooling system components
  • Test fail-safe mode functionality

Major service may require specialized tools.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 7r01 transmission compatible with other Infiniti models?

The 7r01 transmission is specifically designed for the 2019-Present Infiniti QX50 and is not compatible with other Infiniti models. It is a continuously variable transmission (CVT) optimized for the QX50's VC-Turbo engine, ensuring seamless power delivery and fuel efficiency. Compatibility with other models could lead to performance issues or damage to the transmission system.

Q2

What are the maintenance requirements for the 7r01 transmission?

The 7r01 transmission requires regular maintenance to ensure longevity and optimal performance. Infiniti recommends checking the transmission fluid every 30,000 miles and replacing it every 60,000 miles. Additionally, inspect the transmission for leaks, unusual noises, or shifting issues during routine service visits. Adhering to the maintenance schedule outlined in the owner's manual is crucial for preventing premature wear.

Q3

How do I replace the 7r01 transmission in my Infiniti QX50?

Replacing the 7r01 transmission is a complex process that should be performed by a certified technician. First, disconnect the battery and remove the transmission fluid. Detach the driveshaft, exhaust system, and mounting bolts. Lower the transmission carefully using a lift. Install the new transmission by reversing the steps, ensuring all connections are secure. Refill with the specified transmission fluid and test for proper operation.

Q4

What should I do if my 7r01 transmission is not shifting smoothly?

If your 7r01 transmission is not shifting smoothly, first check the transmission fluid level and condition. Low or contaminated fluid can cause shifting issues. Inspect for leaks or damaged components. If the problem persists, use a diagnostic tool to check for error codes. Common solutions include replacing the fluid, repairing leaks, or updating the transmission control module software.

Q5

How can I optimize the performance of my 7r01 transmission?

To optimize the performance of the 7r01 transmission, ensure regular maintenance, including fluid checks and replacements. Use only Infiniti-approved transmission fluid. Avoid aggressive driving habits that can strain the transmission. Keep the vehicle's software updated to the latest version. Additionally, monitor for any signs of wear or issues and address them promptly to maintain smooth operation.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Infiniti QX50 Service Manual

Coming Soon

The official service manual for the 2019-Present Infiniti QX50, covering detailed maintenance, repair, and troubleshooting procedures for the 7r01 transmission and other components.

Technical Service Bulletin for 7r01 Transmission

Coming Soon

This bulletin provides updates and solutions for common issues related to the 7r01 transmission, including software updates and repair procedures.

Infiniti QX50 Parts Catalog

Coming Soon

A comprehensive catalog of OEM parts and accessories for the 2019-Present Infiniti QX50, including transmission components and related hardware.

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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